If you mean The Final One, go to the Edit Game page. Next to the Public radio button at the bottom is a link labeled "configure settings". Click on it and make sure you haven't ticked the "unlisted" checkbox by mistake.
I'm sure I haven't check them. By the way, thank for helping me.
You're welcome. Other people have complained about a similar issue, but it's better to first make sure it's not from a simple cause.
